Search results for "self-trigger"

showing 3 items of 3 documents

Characterization of a neutron-beta counting system with beta-delayed neutron emitters

2016

Abstract A new detection system for the measurement of beta-delayed neutron emission probabilities has been characterized using fission products with well known β-delayed neutron emission properties. The setup consists of BELEN-20, a 4π neutron counter with twenty 3He proportional tubes arranged inside a large polyethylene neutron moderator, a thin Si detector for β counting and a self-triggering digital data acquisition system. The use of delayed-neutron precursors with different neutron emission windows allowed the study of the effect of energy dependency on neutron, β and β–neutron rates. The observed effect is well reproduced by Monte Carlo simulations. The impact of this dependency on …

Nuclear and High Energy PhysicsNeutron emissionAstrophysics::High Energy Astrophysical PhenomenaNuclear TheoryMontecarlo Mètode de01 natural sciencesSelf-triggered digital data acquisition systemNuclear physicsNeutron and beta counters0103 physical sciencesGeant4 simulationsNeutron cross sectionNeutron detectionNeutronself-triggered digital data acquisition system010306 general physicsNuclear ExperimentInstrumentationBeta-delayed neutron emission probabilityPhysicsBonner spherebeta-delayed neutron emission probability:Energies::Energia nuclear [Àrees temàtiques de la UPC]Neutronsta114ta213010308 nuclear & particles physicsNeutron stimulated emission computed tomographyNeutron temperatureMonte Carlo method:Física::Física molecular [Àrees temàtiques de la UPC]Delayed neutronneutron and beta counters
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Results of a self-triggered prototype system for radio-detection of extensive air showers at the Pierre Auger Observatory

2012

We describe the experimental setup and the results of RAuger, a small radio-antenna array, consisting of three fully autonomous and self-triggered radio-detection stations, installed close to the center of the Surface Detector (SD) of the Pierre Auger Observatory in Argentina. The setup has been designed for the detection of the electric field strength of air showers initiated by ultra-high energy cosmic rays, without using an auxiliary trigger from another detection system. Installed in December 2006, RAuger was terminated in May 2010 after 65 registered coincidences with the SD. The sky map in local angular coordinates (i.e., zenith and azimuth angles) of these events reveals a strong azi…

[PHYS.ASTR.HE]Physics [physics]/Astrophysics [astro-ph]/High Energy Astrophysical Phenomena [astro-ph.HE]self-triggergeomagnetic effect.media_common.quotation_subjectAstrophysics::High Energy Astrophysical PhenomenaFOS: Physical sciencesCosmic ray01 natural sciencesElectric field0103 physical sciencesextensive air showers010306 general physicsCosmic raysInstrumentationMathematical PhysicsZenithmedia_commonPhysicsPierre Auger ObservatoryHigh Energy Astrophysical Phenomena (astro-ph.HE)010308 nuclear & particles physicsLarge detector systems for particle and astroparticle physics[SDU.ASTR.HE]Sciences of the Universe [physics]/Astrophysics [astro-ph]/High Energy Astrophysical Phenomena [astro-ph.HE]DetectorAstrophysics::Instrumentation and Methods for AstrophysicsCosmic rayextensive air showerAntennas; Large detector systems for particle and astroparticle physics3. Good healthComputational physicsAzimuthEarth's magnetic fieldSkyAntennasAstrophysics - High Energy Astrophysical Phenomenaradio-detection
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Characterization of a neutron–beta counting system with beta-delayed neutron emitters

2016

A new detection system for the measurement of beta-delayed neutron emission probabilities has been characterized using fission products with well known β-delayed neutron emission properties. The setup consists of BELEN-20, a 4π neutron counter with twenty 3He proportional tubes arranged inside a large polyethylene neutron moderator, a thin Si detector for β counting and a selftriggering digital data acquisition system. The use of delayed-neutron precursors with different neutron emission windows allowed the study of the effect of energy dependency on neutron, β and β-neutron rates. The observed effect is well reproduced by Monte Carlo simulations. The impact of this dependency on the accura…

beta-delayed neutron emission probabilityAstrophysics::High Energy Astrophysical PhenomenaNuclear TheoryGeant4 simulationsself-triggered digital data acquisition systemNuclear Experimentneutron and beta counters
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